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Brake Job: GM Acadia / Buick / Outlook / Enclave Fresno CA

Before replacing the pads, inspect the master cylinder to ensure that it has not been topped off before retracting the pistons into the caliper bores. The front brakes are a floating dual-piston caliper type, the pistons are phenolic. The caliper bridge bolts have a guide pin and bolt that attach the caliper to the bracket. Removing the bottom bolt allows the caliper to be pivoted out of the bracket. Using a special piston retractor designed to push evenly on the dual pistons is highly recommended.

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Brake Job: GM Acadia / Buick / Outlook / Enclave

By looking at the brake dust that has accumulated on the underside of the caliper, it is easy to see that these are ceramic pads. The pistons are phenolic. To prevent chipping, care should be taken when pushing back the pistons.

Front Pad Removal
Before replacing the pads, inspect the master cylinder to ensure that it has not been topped off before retracting the pistons into the caliper bores. The front brakes are a floating dual-piston caliper type, the pistons are phenolic. The caliper bridge bolts have a guide pin and bolt that attach the caliper to the bracket. Removing the bottom bolt allows the caliper to be pivoted out of the bracket. Using a special piston retractor designed to push evenly on the dual pistons is highly recommended.

The pads are retained in the bracket with anti-rattle clips. To release the pad from the clip, there are tabs at the ends of pad that are depressed to release the pad. The pads have noise dampening material attached to the back of the pads.

Front Pad Install
Inspect the dust boots for damage and replace if necessary. Inspect

the guide pins and replace and lubricate if necessary. The boot is to be seated in the grooves of the caliper bracket and guide pin.
Install new anti-rattle clips and pads, rotate the caliper and align the flats on the guide pin to the mounting ear of the caliper. Torque the guide pin bolts to 64 Nm (30 ft/lbs).

The caliper bracket bolts on this vehicle ...

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Resources

Buick Buick Recall

from: NHTSA - Auto Recalls

1968 Buick Buick

Unique Recall ID#
37300002790600000000000

Vehicle/Equipment Year/Make/Model
1968 Buick Buick

Recalled Component Description:
Vehicle Speed Control

Defect Summary:
The Fast Idle Cam On Quadra-Jet Carburetors Can Crack And Ultimately Break Apart. If This Occurs And Parts Fall Into The Throttle Linkage, It Could Cause The Throttle To Stick In A Partially Open Position.

Consequence Summary:
Unexpected Loss Of Throttle Control May Result In Anaccident.

Corrective Summary:
Install A New Improved Fast Idle Cam.

Source: NHTSA’s Office of Defects Investigation (ODI)